327
FNCA52 TJSJ 270841
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
441 AM AST FRI FEB 27 2026
DISCUSSION
THE KBDI REMAINS ABOVE CRITICAL FIRE WEATHER THRESHOLDS IN CABO
ROJO AT 642. HOWEVER, IT CONTINUES BELOW CRITERIA IN GUANICA WITH
459 AND 343 IN CAMP SANTIAGO. TODAY, A SURGE OF MOISTURE WILL
REACH THE REGION, AND OVERALL BREEZY CONDITIONS ARE EXPECTED
ALONG COASTAL AREAS. WIND SPEEDS ARE EXPECTED TO PEAK BETWEEN 13
AND 23 MPH AT TIMES, WITH STRONGER GUSTS DUE TO THE SEA BREEZE.
ALTHOUGH RH VALUES WILL DROP NEAR CRITICAL LEVELS AT TIMES, THE
AVAILABLE MOISTURE WILL MAINTAIN A LOW TO BRIEF MODERATE FIRE
DANGER RISK.
PRZ014-280845-
SOUTHEAST COASTAL PLAINS-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 30
TEMP (24H TREND) 86 (+1) 69 (-2) 86
RH % (24H TREND) 57 (+2) 89 (-2) 56
WIND 20FT/EARLY(MPH) E 17 G23 E 12 SE 18 G24
WIND 20FT/LATE(MPH) E 17 G23 E 12 SE 18 G24
MIXING HGT(FT-AGL/MSL)4970 5580
TRANSPORT WND (MPH) E 18 E 24
VENT RATE (KT-FT) 79520 117180
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-280845-
SOUTHERN HILLS-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 10
TEMP (24H TREND) 83 (+3) 65 (-3) 82
RH % (24H TREND) 62 (-5) 94 (+2) 60
WIND 20FT/EARLY(MPH) E 13 E 12 SE 16
WIND 20FT/LATE(MPH) E 13 E 12 SE 16
MIXING HGT(FT-AGL/MSL)5460 6260
TRANSPORT WND (MPH) E 18 SE 24
VENT RATE (KT-FT) 87360 131460
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-280845-
NORTH COASTAL PLAINS-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 20
TEMP (24H TREND) 86 (+1) 68 (-2) 86
RH % (24H TREND) 59 (-5) 96 (0) 56
WIND 20FT/EARLY(MPH) E 17 G19 E 13 E 17 G20
WIND 20FT/LATE(MPH) E 17 G19 E 13 E 17 G20
MIXING HGT(FT-AGL/MSL)5080 7340
TRANSPORT WND (MPH) E 18 SE 23
VENT RATE (KT-FT) 81280 146800
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-280845-
NORTHERN HILLS-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 20
TEMP (24H TREND) 85 (+2) 66 (-2) 86
RH % (24H TREND) 57 (-5) 96 (0) 53
WIND 20FT/EARLY(MPH) E 14 E 11 SE 16
WIND 20FT/LATE(MPH) E 14 E 11 SE 16
MIXING HGT(FT-AGL/MSL)5460 7520
TRANSPORT WND (MPH) E 16 SE 22
VENT RATE (KT-FT) 76440 142880
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-280845-
WEST COAST-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 20
TEMP (24H TREND) 87 (0) 68 (-1) 87
RH % (24H TREND) 57 (-4) 94 (+3) 54
WIND 20FT/EARLY(MPH) E 16 E 13 SE 19 G22
WIND 20FT/LATE(MPH) E 16 E 13 SE 19 G22
MIXING HGT(FT-AGL/MSL)4910 6560
TRANSPORT WND (MPH) E 14 SE 24
VENT RATE (KT-FT) 58920 137760
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-280845-
EASTERN INTERIOR-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 30 20
TEMP (24H TREND) 83 (+2) 66 (-3) 83
RH % (24H TREND) 64 (-4) 94 (-2) 61
WIND 20FT/EARLY(MPH) E 14 SE 14 SE 16 G18
WIND 20FT/LATE(MPH) E 14 SE 14 SE 16 G18
MIXING HGT(FT-AGL/MSL)5310 6050
TRANSPORT WND (MPH) E 18 SE 24
VENT RATE (KT-FT) 84960 127050
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-280845-
LUQUILLO MOUNTAIN RANGE-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 30
TEMP (24H TREND) 78 (+1) 65 (-3) 79
RH % (24H TREND) 70 (-5) 96 (-1) 66
WIND 20FT/EARLY(MPH) E 12 SE 11 SE 14 G17
WIND 20FT/LATE(MPH) E 12 SE 11 SE 14 G17
MIXING HGT(FT-AGL/MSL)4220 4990
TRANSPORT WND (MPH) E 20 SE 24
VENT RATE (KT-FT) 71740 104790
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-280845-
CENTRAL MOUNTAIN RANGE-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 30
TEMP (24H TREND) 83 (+4) 63 (-3) 83
RH % (24H TREND) 59 (-7) 97 (+3) 56
WIND 20FT/EARLY(MPH) E 10 E 8 SE 14
WIND 20FT/LATE(MPH) E 10 E 8 SE 14
MIXING HGT(FT-AGL/MSL)5830 7160
TRANSPORT WND (MPH) E 14 SE 23
VENT RATE (KT-FT) 69960 143200
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-280845-
CAYEY MOUNTAIN RANGE-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 30 10
TEMP (24H TREND) 78 (+1) 66 (-1) 78
RH % (24H TREND) 71 (-3) 96 (-3) 68
WIND 20FT/EARLY(MPH) E 11 E 10 SE 13
WIND 20FT/LATE(MPH) E 11 E 10 SE 13
MIXING HGT(FT-AGL/MSL)4740 5470
TRANSPORT WND (MPH) E 18 SE 23
VENT RATE (KT-FT) 75840 109400
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-280845-
VIEQUES-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 10
TEMP (24H TREND) 85 (0) 71 (-2) 85
RH % (24H TREND) 58 (-3) 86 (-3) 57
WIND 20FT/EARLY(MPH) E 17 G21 E 18 G21 E 18 G23
WIND 20FT/LATE(MPH) E 17 G21 E 18 G21 E 18 G23
MIXING HGT(FT-AGL/MSL)4120 4100
TRANSPORT WND (MPH) E 20 E 26
VENT RATE (KT-FT) 70040 94300
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-280845-
CULEBRA-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 10
TEMP (24H TREND) 85 (0) 73 (-2) 85
RH % (24H TREND) 61 (-3) 86 (0) 59
WIND 20FT/EARLY(MPH) E 17 G22 E 18 G23 E 19 G23
WIND 20FT/LATE(MPH) E 17 G22 E 18 G23 E 19 G23
MIXING HGT(FT-AGL/MSL)4230 4140
TRANSPORT WND (MPH) E 21 E 26
VENT RATE (KT-FT) 76140 95220
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-280845-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 30
TEMP (24H TREND) 88 (+2) 69 (-2) 88
RH % (24H TREND) 55 (+3) 90 (+4) 53
WIND 20FT/EARLY(MPH) E 23 G29 E 19 G23 SE 24 G31
WIND 20FT/LATE(MPH) E 23 G29 E 19 G23 SE 24 G31
MIXING HGT(FT-AGL/MSL)5350 5920
TRANSPORT WND (MPH) E 22 SE 28
VENT RATE (KT-FT) 101650 142080
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-280845-
SAINT THOMAS AND SAINT JOHN-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 10
TEMP (24H TREND) 85 (+1) 72 (-3) 85
RH % (24H TREND) 57 (-6) 87 (+1) 56
WIND 20FT/EARLY(MPH) E 18 G22 E 19 G23 E 19 G23
WIND 20FT/LATE(MPH) E 18 G22 E 19 G23 E 19 G23
MIXING HGT(FT-AGL/MSL)4130 4060
TRANSPORT WND (MPH) E 21 E 26
VENT RATE (KT-FT) 74340 93380
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-280845-
ST CROIX-
441 AM AST FRI FEB 27 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 10
TEMP (24H TREND) 86 (+1) 71 (-3) 86
RH % (24H TREND) 59 (-4) 87 (0) 59
WIND 20FT/EARLY(MPH) E 16 G20 E 17 G20 E 19 G23
WIND 20FT/LATE(MPH) E 16 G20 E 17 G20 E 19 G23
MIXING HGT(FT-AGL/MSL)4900 4740
TRANSPORT WND (MPH) E 22 E 25
VENT RATE (KT-FT) 93100 104280
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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